Keysight Technologies
N5980A 3.125 Gb/s Serial BERT
Version 1.1
Data Sheet
02 | Keysight | N5980A 3.125 Gb/s Serial BERT Version 1.0 - Data Sheet
The Keysight Technologies, Inc. N5980A 3.125 Gb/s Serial BERT is ideal for manual or automated manufacturing test of electrical and optical devices running at speeds between
125 Mb/s to 3.125 Gb/s. It addresses all common standard speeds via selectable bit rates.
Easy-to-use and cost efficient
The software user interface has one standard or one advanced screen to ensure intuitive
use for operators. It makes the instrument easy to use and easy to learn.
Twice the measurement throughput
By using both the electrical and optical (SFP) interfaces concurrently, you can double
your measurement throughput (electrical in/optical out and vice versa).
Automation made easy
The remote programmability of the user interface, using SCPI - syntax, makes it simple
to integrate the N5980A into other programs.
PRBS, K28.5 pattern or clock generation
and integrated clock data recovery
The N5980A can generate standard PRBS polynomials, K28.5 (‘Comma’) characters and
different sub-rate clocks (/2 to /20). It can also inject errors with an adjustable error
ratio. The receiver has a clock-data-recovery (CDR) built-in and differential inputs (SMA)
for signals from 50 mVpp to 2 Vpp amplitude.
Standard (SFP) optical module plug-in
The instrument has a standard SFP- female connector. This enables all different kind
of user-selectable optical modules (e.g for multi-mode/single-mode fiber at 850nm,
1310nm and 1550nm for the test set-up).
Small size
Its very small size allows the N5980A to fit on any bench and in any automated setup.
The dimensions are, WxHxD, 228mm x 59mm x 246mm (Bench top dimensions.)
Key Benefits
–– Standard measurement rates
between 125 Mb/s and
3.125 Gb/s
–– Electrical and optical (SFP)
interfaces (generator:
concurrently)
–– PRBS, K28.5 pattern or clock
generation and integrated
clock data recovery
–– Smallest BERT available today
–– Easy-to-use and cost efficient
–– Controlled from user software
running on an external Windows
2000, XP or 7 PC connected by a
USB 2.0 interface
–– BERT can be fully programmed
03 | Keysight | N5980A 3.125 Gb/s Serial BERT Version 1.0 - Data Sheet
System Specifications
Data rate
Out/Out
The same data rate applies for pattern generator electrical out and optical
out, and for error detector electrical in and optical in.
Output type
differential, AC-coupled,
external 100 Ω
differential termination
Amplitude, selectable ECL
850 mVpp typ., single-ended
1700 mVpp typ., differential
LVDS
400 mVpp typ., single-ended
800 mVpp typ., differential
Jitter peak-peak
0.05 UI typ. @ OC-12
0.08 UI typ. @ GbE
0.15 UI typ. @ OC-48
Connector
SMA, front panel
Data rates
Fast Ethernet
125 Mb/s
OC-3
155.52 Mb/s
OC-12
622.08 Mb/s
OC-48
2.48832 Gb/s
OC-48 with FEC
2.66606 Gb/s
1 x FC
1.0625 Gb/s
2 x FC
2.125 Gb/s
1 x Gigabit Ethernet
1.25 Gb/s
XAUI
3.125 Gb/s
Accuracy
± 50 ppm
Operating system
The software supplied runs on Windows 2000, XP or 7 with .NET v2.0, by a
USB 2.0 interface.
Pattern generator optical out
A standard SFP housing is provided. Minimum number of insertion/deinsertion cycles: 200.
Trigger output
A single-ended, electrical output is provided on the
front-panel.
Trigger out
Figure 1: User interface-advanced mode
Pattern Generator
Pattern
The following patterns are supported:
PRBS: 27-1, 215-1, 223-1, 231-1.
Data pattern: K28.5.
Clock pattern: data rate divide by n, n=2,4,8,10,16,20
Output type
single-ended
Impedance
50 Ω nominal, AC-coupled
Amplitude
850 mV typ.
Clock rate, selectable data rate
divided by n, n=2,4,8,10,16,20
Connector
SMA, front Panel
Error Detector
A differential electrical input is provided on the frontpanel. Data rate is the
same as pattern generator.
Pattern
The following patterns are supported: PRBS: 27-1, 215-1, 223-1, 231-1.
In/In
Input type
differential, AC-coupled
Max. input amplitude
1 Vpp, single-ended
2 Vpp, differential
Impedance
100 Ω nominal
Fixed electrical and optical error inject: Fixed error ratios of 1
error in 10n bits, n=3,4,5,6,7,8,9. Single error injection. Separate
error ratios can be adjusted for pattern generator electrical out
and optical out.
Sensitivity
< 50 mV
Clocking mode
internal CDR
Synchronization
automatically on level, polarity,
phase, bit and pattern
Pattern generator electrical out
Connector
SMA, front panel
The pattern can be individually adjusted for pattern generator
electrical out and optical out.
Error injection
A differential electrical output is provided on the front-panel.
04 | Keysight | N5980A 3.125 Gb/s Serial BERT Version 1.0 - Data Sheet
Figure 2: Typical manufacturing tests of SFP-modules
General
Power supply
100 V to 240 V ~, 50-60 Hz
Power consumption
50 VA max
Operating temperature
0°C to 55°C
Operating altitude
up to 2000 m
Storage temperature
-30°C to 70°C
Interface
USB 2.0 standard
Language
SCPI syntax
Dimensions (W x H x D)
Bench top (with bumper)
Rack mount (without bumper)
228 x 59 x 246 mm
1/2* 19" width, 1U height
(213 x 44.5 x 245 mm)
Weight
1660 g
Safety designed to
IEC61010-1
EMC tested to
IEC61326
Warm-up time
10 min
Warranty
1 year standard
Figure 3: Typical eye diagram at 2.66 Gb/s
05 | Keysight | N5980A 3.125 Gb/s Serial BERT Version 1.0 - Data Sheet
Ordering Information
Accessories Included
User Software and Demo CD includes:
–– Application Presentation
–– Data Sheet
–– User documentation (User Guide with programming
reference)
–– User Software including offline demonstration
–– Local power cord, USB cable, SFP loopback connector
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06 | Keysight | N5980A 3.125 Gb/s Serial BERT Version 1.0 - Data Sheet
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© Keysight Technologies, 2006 - 2014
Published in USA, October 17, 2014
5989-4752EN
www.keysight.com